Lawn-sprinkler.



LAWN SPRINMJBR.

APPLIOATION FILED AUG. 30,1907.

l911,71. M Patentea Feb.9,`19o9 iwf I /W MA1,

M v n MM@ lso 'einen sraras T @at HENRY GIBBS,

i /f I f OF CHICAGQ, LLNIS, .KSSIGNR TO 'W. 'D. ALIEN LMNUFACTURNG COMPANY, OF QHICAG., LLLIN'GISyA QORPRATION. A

LAWNSPRNKLEE.

`Specioation of Letters Patent. Y

Patented Feb. 9, 1909.

Application and august ao, 19er. serial no. 330,711.

To all whom it may concern:

Be. it known that I, Huisnr Giens, a citizen of the UnitedStates, and a resident of Chicago, county of Cook, 'and ,State 'of Illinois, have invented certain neu1 and useful a chamber circular incross section and sprayed therefrom by centrifugal action through an axial discharge orice. Such sprinklers are cheap in construction and elfective in operation but distribute fthe spray 'over a. large circular :area .and cannot therefore be conveniently used for sprinklingsinall grass plots or easily changed from point to point without wetting the operator.

'llie object of the present improvement is to provide means whereby this cheap forni of sprinkler may be adapted for throwing the spray 'over a seinicircular area 0r over more or less than the half circle, and the `ivention consists in the features ol constiuction and arrangements oi" parts herein after set forth, illustratedin the accompany ing drawing andinore particularly `pointed out in the appended claims.

ln taglie drawings, Figure l is a plan -view of the improved sprinkler. Fig. 2 is a secP tion on line 2;;-2 of Fig.` l and Fig. 3 is a detail section on line of Fig. 2.

The cylindrical spray box l is preferably mounted on a pair of inclined supports or runners 2 cast in piece therewith or otherwise suitably connected tothe spray box.

'The spray box is cored out'to forni a chainber 3 circular in horizontal section and is provided .on one side with a projection ll which is internally .threaded to form a coupliiigiiieiiiber whereby the hose may be attached. to the sprinkler. The coupling member .4. is-arianged between the supporting runners and its axis is parallel to the runners so thatitlie sprinkler may be readily drawn over thefground by means of the hose A attached to thefcou-pling. An inlet opening' 5 extends *iron-i the coupling, and inthe `form shown, at anl angle to the axis 'thereof and opens tangentially intotlief side of the chambei' 3.- 'lhe latter is provided with` an axial circular discharge opening G opening through y the upper face of the spray box. A -central' boss or projection 7 is preferably arranged within the chamber 3 andV extends from the bottom thereof to a point adjacent the discharge orifice 6 atv its upper end. In a sprinkler of this sort, the water enters tangentially into the chamber 3 and circu" lates therein in the direction of the arrow shown' in Fig. 3, and is electively sprayed 6 over a large circular area.

by the centrifugal action through the oriiice y i To limit the area over which the Water is' distributed, a flat cut-off plate 10 is arratified to slide in a shallow Groove yor guide-way 9 Eornied "inthe upper tace of the spray box. Th groove or 'ide-way is is preferably arrange line or arallel with the axis of 'the 'coupling 4 an' is provided at its end adjacent the coupling with a pair of upwardly profiectin-Or lugs l1 which eni gage the edges of the p ate 10 and holdtlie latter securely against. side the spray chamber 3, the -forward edge I5' of the plate may be projected over the circular discharge opening 6 to a greater or less slot 18 in the p. play. A thumb,`

screw 12, threaded into the projecting pory the spray box,

extent to partially close the same, as shown in the drawings; Nhen this is done. thev spray from the sprinkler will be distributed j' over a half circle or over 'an area slightlyV With 4.the

greater or less. than a half circle.

centrifugal sprinkler and cut-oil plate ofv i this sort, the outer portion of the plate edge 15 in order that the half-circle spray be unii'orin throughout and devoid of any' cmipling 4: and it is desirable that the halfi .95 should be beveled to forni a sharp straight 'i circle spray be thrown directly away from the coupling. Instead .of having-the edge 15 of the cnt-oil plate at rightangles to the anis oit the coupling, itis 'found 'necessary in a centrifugal sprinkler-of this sort, that the edge be inclined at an acute angle to the axis of the coupling and in the. direct: shown when tie Water in the sL circulated inthe direction indi arrow in Fig. 3, in order that the semicircular spray be thrown directly away from the couphngr. lt will be noted that the edge lo so thatit may be placed close to a Walk or used to sprinkle small grass plots. and so that the operator may change the spray from place to place Without getting wet, and Without` cutting oli the supply of Water to a sprinkler. Moreover, the adjusting plate is so positioned that the operator may shift it to increase' or diminisi the amount o t spray without cutting oli' the Water supply.

It, is obvious that changes may he made in thedetails set forth Without departure from the essentials of the invention. y

'Having described my invention, what l claim as new and desire to secure by Letters Patent, is

l; A lawn sprinkler comprising' a chambered spray box having a tangential inlet and a single, central discharge orifice in its upper portion, said spray box having guides on its upper portion,'a fiat, horizontallymovable cut-oil' plate mounted to slide longi tudinally between said guides find arranged to proyect over and partially close said dis-- charge orifice to .modify the`- spray, and means for holding said cut-oil1 plate in adjusted position, substantially as describedu 2. A lawn sprinkler comprising a chambered spray boahaving a tangential inlet and a single, central discharge orifice in the upper portion, said spray box-having guides on its upper portion, a tlat, horizontally movable cut-ofi plate mounted to slide longitudinally between said guides and havingn a beveled edge arranged to project over and partially close said discharge orilice to modlfy the spray and a thumb screw'extending` through a longitudinal slot in said plate for holding the same in adjusted position, substantially as described. A

3'. A lawnsprinliler comprising a spray box provided with a chamber circular in section and havinga tangential inlet and an axially arranged, circular discharge orilice in the upper portion of said spray box, and a flat cut-ofplate adjustably secured upon the upper portion of said spray box and having a bevelededge arranged to project scribed.

4. lawn sprinkler comprising a spray box provided with a chamber circular in sec tion and. having` a tangential inlet and an axially arranged, vcircular discharge orifice in the upper portion ot saidspray box, said spray box, having; a guide-Way 'formed on its upper portion, a cut-oil plate adjustable in said guide-way at right angles to the axis ol' said chamber and arranged to projectI over and partially close said discharge orice to modif the spray, and means for holding said plate in adjusted position, substantially as described.

A. lawn sprinkler comprisiila1 a spray box provided with a chamber circular in section and having` a tangential inlet and an axially arranged, circular discharge orifice in the upper portion of said spray box, said spray boar having a guideway formed on its "upper portion and a cut-oft' plate adjustable in said guide-way at right angles toi the axis or said chamber, said plateA having a straight edge at its end arranged to project over and partially close said circular discharge orifice to modify the spray, substantially as described.

6. A lawn sprinkler comprisingr a spiten box provided with a chamber circular in section and having a tangential inlet and an axially arranged, circular discharge orifice in the upper portion of said spray box, said spray box having a guide-.Way formed on its upper portionand a cut-oil' plate adjustable in said guide-way at right angles to the axis of said chamber, said plato havinga straight, -beveled edge arranged to project over and partially close said circular discharge orifice to modify the spray, said plate being held. by said guide-way with its beveled edge in proper relation to said orifice., substantially as described.

L A lawn sprinkler comprising a spray box provided with a chamber circular in horizontal section and a projection on its side threaded to :form a couplingY member,

f said chamber havingr a tangential inlet leading :trom said coupling and an axial, circular discharge opening` in the upper face of the spray box, said spray box having a guideway 'formed on its upper tace at right angles to the axis of said chamber and )arallel to the axis of said coupling, a cut-oli plato mounted to slide longitudinally in said guideway, and a thumb screuy threaded into the upper part ot' said coupling and extending through a slot insaid plate to hold the same in adjusted position, the 'forward edge oli said plate being arranged to project over and partially close said circular discharge opening to modify the spray, substantially as described..

8. A lawn sprinkler comprising a spray lil (lli

l maffia horizontal section and' a projection on s the spray side threaded to lform a couplin member, said chamberhaving a 'tangential Inlet lead ing from said coupling and au axial, circular discliar e opening in the appel' :face of ox, saidepiay boi: having a guide-Way upon its upper face ab right angles to the axis of said Chamber/a. eut-off plate mounted io slide longitudinally in said guide-way, said plate having a beveled edge arranged 't0 project over and pariiailyclose said dschai'e orice to modlifv the spray, said plate heiligheid by'said guideway with its beveled edge inclined at an'aeue angle io the axis of said coupling, subsaiitally as described. I n

9. A. lawn 'sgi'inkleaeoiixprisig a spray box provided with a pair oapportng me iiei's and with e', projection on its side threaded to form a coupling, the axis of which is parallel to 'said runners, said box having a chamber circular in section9 a tangential inlet leading fiom said coupling to y'said elia'mbei' and a central, circular dis- 'charge orifice m the upper face of said spray box, said-spray box having a'. gudeway on its upper' face, a cutoff plate adjustably mounted said guide-Way and arranged to pojecl; over-and close the portion of said circalai` discharge oi'ice nearest to said coupling to modify 'the spray, and means for holding said cut-et plate in adjusted posielema salistaiially as described.

HENRY GBBS. "Witnesses: P f VHaga? L, OLAP?,

LLLMAN Pimmufiea, 

